18765712

素因数分解:

$2^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1223}}^1$

素因数の和:1375

約数の個数: 40

約数和(自身を含む): 41890176

約数和(自身を除く): 23124464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 137, 274, 548, 959, 1096, 1223, 1918, 2192, 2446, 3836, 4892, 7672, 8561, 9784, 15344, 17122, 19568, 34244, 68488, 136976, 167551, 335102, 670204, 1172857, 1340408, 2345714, 2680816, 4691428, 9382856, 18765712]

約数ペア:

[(1, 18765712), (2, 9382856), (4, 4691428), (7, 2680816), (8, 2345714), (14, 1340408), (16, 1172857), (28, 670204), (56, 335102), (112, 167551), (137, 136976), (274, 68488), (548, 34244), (959, 19568), (1096, 17122), (1223, 15344), (1918, 9784), (2192, 8561), (2446, 7672), (3836, 4892)]